"Examining the Efficacy of Nasal Sprays in COVID Protection"

Nasal sprays containing iota-carrageenan or nitric oxide are being touted as potential tools for COVID prevention, with some studies showing promising results. However, these sprays are not approved by the FDA and lack sufficient clinical trial data to support their effectiveness. While some countries have approved certain nasal sprays, the slow pace of clinical trials and regulatory processes in the US has hindered their availability. Researchers are exploring innovative nasal treatments, such as sprays with ACE2 receptor-like filaments and molecules that inhibit viral binding, but more research is needed. Until then, wearing masks remains a crucial preventive measure.